GeForce 8800 GT 256MB vs GeForce GTX 560 Ti

Intro

Compare those specs to the GeForce GTX 560 Ti, which features a core clock speed of 822 MHz and a GDDR5 memory speed of 1002 MHz. It also uses a 256-bit bus, and uses a 40 nm design. It is comprised of 384 SPUs, 64 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 256MB		105 Watts
GeForce GTX 560 Ti		170 Watts
	Difference: 65 Watts (62%)

Memory Bandwidth

Performance-wise, the GeForce GTX 560 Ti should theoretically be quite a bit better than the GeForce 8800 GT 256MB overall. (explain)

GeForce GTX 560 Ti		128256 MB/sec
GeForce 8800 GT 256MB		44800 MB/sec
	Difference: 83456 (186%)

Texel Rate

The GeForce GTX 560 Ti will be a lot (about 57%) faster with regards to AF than the GeForce 8800 GT 256MB. (explain)

GeForce GTX 560 Ti		52608 Mtexels/sec
GeForce 8800 GT 256MB		33600 Mtexels/sec
	Difference: 19008 (57%)

Pixel Rate

The GeForce GTX 560 Ti should be quite a bit (about 174%) faster with regards to FSAA than the GeForce 8800 GT 256MB, and capable of handling higher screen resolutions better. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
GeForce 8800 GT 256MB		9600 Mpixels/sec
	Difference: 16704 (174%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of data (counted in MB per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.